Did I get myself into a bind with a clean install?

I recently upgraded Vista and W7RC to W7 64bit with no problems. I installed 7 on a new disk (WD VelociRaptor 300GB) and have yet to remove the RC and Vista. I want to format the 1T Samsung where RC and Vista were installed and use it for a back-up disk. I have been using a WD 500g for backup which I will now move to another computer.
W7 will not let me format either disk.
Disk 0 is the Samsung
Disk 1 the WD 500g
Disk 2 is the new disk where my new instillation is installed.
Do I need to worry about this disk order?

I think I got myself into a real bind. Reading some other posts it looks like by doing a clean install on my new disk I may still be booting from my old disk with everything but my boot sector on the new disk. Anyone have any ideas how I to fix this with out doing a totally new install?
I changed the disk order in my bios with the new disk first and it will not boot.
When I changed it back again it boots fine, showing tripple boot options:
1.Windows 7
2. Windows 7
3. Vista

We do these extractions here every day and they are ALL fully recoverable:

Disconnect the other drives.

Move your Windows 7 HD to the 0 position and set it to boot after DVD drive in BIOS,

boot into the Windows 7 DVD Repair console and run Startup Repair 3 times to rewrite the MBR to Win7 drive.

Afterward you can plug back in the other drive and format.

My new volumn labeled c: has the new instal on a single 300g partition.
Vista and the old 7 are on the 1T drive dual partitions D: and G:
With my old backup drive 500g labeled E: single partition.
See snip below.

cjb4 said:

My new volumn labeled c: has the new instal on a single 300g partition.
Vista and the old 7 are on the 1T drive dual partitions D: and G:
With my old backup drive 500g labeled E: single partition.
See snip below.

Confirmed. Your MBR is on the old RC/Vista partition.

Disconnect it and Backup partition and move new Win7 into it's cable in 0 slot. You will not now need to change BIOS boot order but check it to be sure it boots after DVD.

Boot into Win7 DVD Repair console and run startup repair 3 times to recover MBR into 7.

Plug back in drive(s) you want to keep, and format.

So I should give it a try? Disconnect the two older drives, move the new disk to 0 and set to boot after the DVD.
Run repair 3 times.
Will try it and report back.
For future reference--I should have disconnected the 2 older drives before I did the initial clean install?
thanks

cjb4 said:

For future reference--I should have disconnected the 2 older drives before I did the initial clean install?

Exactly, unless you intended the multi-boot.

Don't worry, this one is easy. We do a couple per day where we have to move Win7 over to the first partition deleted XP/Vista, sometimes jumping data partitions. It only gets risky when you move/copy data.

Merely rewriting the MBR is automated in Windows 7.

Well unfortunately it didn't work.
Here is what I did:
unpluged cables on the 1T samsung and the WD 500 gig
Pluged the WD VelociRaptor 300GB into the port 0
Ran the startup repair now 6 times.
In the bios the WD VR isn't recognized only the DVD drive is recognized, however in the Boot Device Priority the WD VR is there second after the DVD.
When I check the details section of the startup repair it looks like it should be fixed.
Message:
Roor cause found
The partition table does not have a valid partition
Repair Action: Partition tool repair
Result: Completed successsully, error code 0x0
time taken = 2137 ms (the ms change each time I retry)
Any thoughts?